EXPECTED_ARGS=2
E_BADARGS=65
MYSQL=which mysql
PASS=tr -cd '[:alnum:]' < /dev/urandom | fold -w16 | head -n1
echo $PASS

Q1="CREATE DATABASE IF NOT EXISTS $1;"
Q2="GRANT USAGE ON *.* TO $2@localhost IDENTIFIED BY '$PASS';"
Q3="GRANT ALL PRIVILEGES ON $1.* TO $2@localhost;"
Q4="FLUSH PRIVILEGES;"
SQL="{Q1}${Q2}${Q3}${Q4}"

if [ $# -ne $EXPECTED_ARGS ]
then
echo "Usage: $0 dbname dbuser"
exit $E_BADARGS
fi

$MYSQL -uroot -p -e "$SQL"

[/bash]